Optical hybrid module, optical device thereof and semifabricated product for the optical device

摘要

An optical device capable of optically coupling an optical element to be mounted to an optical waveguide circuit with low transmission losses is provided. On a base (20) provided with a substrate (1), a positioning pattern (15) made of a Pt film, a high melting point material having a melting point higher than a temperature of consolidating glass, is formed. Then, glass layers are formed by depositing glass particles by flame hydrolysis deposition and consolidating the deposited glass particles. The glass layers cover the top of the positioning pattern (15) and the base (20). The glass layers on the top and the periphery of the positioning pattern (15) are removed to expose the positioning pattern (15) and the base (20) therearound. The exposed area is to be a optical element mounting face 4. The positioning pattern (15) allows a light receiving device (8) to be positioned and fixed on the optical element mounting face 4 accurately. The light receiving device (8) is allowed to be coupled to a circuit of an optical waveguide forming area (2) formed in the remaining glass layers that have not been removed.